Ulanzi A21 Wireless Microphone is the Ulanzi A21 Wireless Microphone is a compact wireless lavalier mic built for clear voice capture during smartphone recording. It offers 360° omnidirectional sound pickup with noise reduction, stable 2.4GHz wireless transmission up to 100 meters, and quick connection using a USB Type-C option for compatible smartphones. For creators working outdoors or on the go, it also supports long total battery backup of up to 36 hours with a charging case and can record while charging your phone—useful for interviews, vlogging, and live streaming.
Key Features
- Plug and play wireless connectivity — helps you start recording instantly without complex setup.
- Stable wireless transmission up to 100 meters — gives you more freedom to move while speaking on camera.
- Multiple audio modes (noise reduction and original mode) — lets you choose an audio approach based on your recording environment.
- Up to 36 hours total battery life with charging case — supports extended shooting sessions without frequent charging.
- Record while charging your phone — helps you keep filming during long sessions.
- Ultra-compact button-style clip-on design — stays discreet on your clothing for interviews and vlogs.
- 360° omnidirectional sound pickup — captures voice clearly from a natural speaking position.
Who Should Buy This
- Content creators who need a Ulanzi A21 Wireless Microphone for vlogging, outdoor recordings, and interviews where you may move away from the phone.
- Streamers and presenters recording live audio who want stable wireless transmission and low-latency performance (latency <25ms).
- Students and remote speakers who want a lightweight, clip-on wireless mic for daily smartphone recording.
Specifications
- Product Name: Ulanzi A21 Wireless Microphone
- Model: XCP-A053-US2 / XCP-A054-US2
- Frequency Range: 20Hz – 20kHz
- Sampling Rate: 32kHz / 24bit
- Wireless Range: Up to 100 meters
- Connectivity: 2.4GHz Wireless
- Connector: USB Type-C
- Compatible Devices: Smartphones
- Sound Field: Mono
- Polar Pattern: Omnidirectional
- Noise / Signal: >70dB
- Latency: <25ms
- Battery Capacity: 400mAh
- Total Battery Backup: Up to 36 hours with charging case
- Microphone Battery Life: 6–8 hours per microphone
FAQ
How far can the Ulanzi A21 Wireless Microphone transmit?
It supports stable wireless transmission up to 100 meters.
Does it pick up sound from all directions?
Yes. It uses 360° omnidirectional sound pickup with a mono sound field.
Does the Ulanzi A21 Wireless Microphone support noise reduction?
Yes. It includes noise reduction technology and also offers an original mode.
Can I record while charging my phone?
Yes. The Ulanzi A21 Wireless Microphone supports recording while charging your phone.
How long can it run with the charging case?
With the charging case, total battery backup is up to 36 hours.
If you’re looking for a discreet wireless mic for interviews, vlogging, and live streaming, the Ulanzi A21 Wireless Microphone delivers quick setup, stable range, and clear voice capture—ready for your next recording session.
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